Motor Unit Assembly Parts - Chamberlain 3280-390 1/2 HP User Manual

Motor Unit Assembly Parts

KEY PART
NO. NO. DESCRIPTION
1 41A4371 Belt cap retainer
2 41A4885-5 Gear and sprocket assembly.,
Complete with: Spring washer;
Thrust washer; Retaining ring;
Bearing plate; Roll pins (2);
Drive gear and worm gear;
Helical gear w/retainer and grease
3 41A2817 Drive/worm gear kit w/grease,
Roll pins (2)
4 41B4245 Line cord
5 41A5484-1 End panel w/all labels
6 4A1344 Light socket
7 108D79 Lens
8 30B532 Capacitor – 1/2 HP
9 12A373 Capacitor bracket
10 41A3150 Terminal block w/screws
(Down)
Brown
Contact
Wire
Drive
Gear
Center Limit
Contact
KEY PART
NO. NO.
11 41C4842
12 41A5525-3
13 41A2818
14 41D3452
15 41A2822-1
16 41C4398A
17 41A5483-4
18 41C5497
41C5548
19 41D180-1
41A2826-1
41A2825
34
LIMIT SWITCH ASSY.
Grey
Wire
(Up)
Yellow
Contact
Wire
DESCRIPTION
Universal replacement motor &
bracket assembly,
Complete with: Motor, worm,
bracket, bearing assembly, RPM
sensor
Cover
Limit switch drive & retainer
Limit switch assembly
Interrupter cup assembly
RPM sensor assembly
Receiver logic board (390 MHz)
Complete with Logic board
High voltage wire harness
Low voltage wire harness
End panel
NOT SHOWN
Shaft bearing kit
Opener assembly hardware kit
(includes screws not designated
by a number in illustration)